Question:
Which one of the following has a square planar geometry
(At nos.: Fe = 26, Co = 27, Ni = 28, Pt = 78)
Which one of the following has a square planar geometry
(At nos.: Fe = 26, Co = 27, Ni = 28, Pt = 78)
Updated On: Jul 2, 2022
- $[Pt Cl_4]^{2-}$
- $[CoCl_4]^{2-}$
- $[FeCl_4]^{2-}$
- $[NiCl_4]^{2-}$
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
As $Cl^-$ is weak field ligand so no pairing up.
Hence it is $sp^3$ hybridized giving tetrahedral geometry.
Due to $Cl^-$, back pairing is not observed so it will be $sp^3$ hybridized giving tetrahedral geometry.
Because weak ligand, back pairing is not observed so it will be $sp^3$ i.e. tetrahedral geometry. All the complexes of $Pt^{2+}$ are square planar including those with weak field ligand such as halide ions thus (4) is correct.
Was this answer helpful?
0
0
Top Questions on coordination compounds
- If an iron (III) complex with the formula \[\left[ \text{Fe}(\text{NH}_3)_x (\text{CN})_y \right]^-\]has no electron in its \( e_g \) orbital, then the value of \( x + y \) is:
- JEE Main - 2024
- Chemistry
- coordination compounds
- Choose the correct statements from the following:
A Ethane-1,2-diamine is a chelating ligand.
B Metallic aluminium is produced by electrolysis of aluminium oxide in presence of cryolite.
C Cyanide ion is used as a ligand for leaching of silver.
D Phosphine acts as a ligand in Wilkinson catalyst.
E The stability constants of \( \text{Ca}^{2+} \) and \( \text{Mg}^{2+} \) are similar to EDTA complexes.- JEE Main - 2024
- Chemistry
- coordination compounds
- Identify the incorrect statement.
- NEET (UG) - 2024
- Chemistry
- coordination compounds
- Which of the following compounds show colour due to d-d transition?
- JEE Main - 2024
- Chemistry
- coordination compounds
- Consider the following complexes:
\([CoCl(NH_3)_5]^{2+}\) (A)
\([Co(CN)_6]^{3-}\) (B)
\([Co(NH_3)_5(H_2O)]^{3+}\) (C)
\([Cu(H_2O)_4]^{2+}\) (D)
The correct order of A, B, C, and D in terms of wavenumber of light absorbed is:- JEE Main - 2024
- Chemistry
- coordination compounds
View More Questions
Questions Asked in AIEEE exam
- This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two Statements. It is not possible to make a sphere of capacity $1$ farad using a conducting material. It is possible for earth as its radius is $6.4 \times 10^6\,m$.
- AIEEE - 2012
- electrostatic potential and capacitance
- A steel wire can sustain $100\, kg$ weight without breaking. If the wire is cut into two equal parts, each part can sustain a weight of
- AIEEE - 2012
- mechanical properties of solids
- The limiting line in Balmer series will have a frequency of (Rydberg constant, $R_{\infty}=3.29\times10^{15}$ cycles/s)
- AIEEE - 2012
- Electromagnetic Spectrum
- Which of the plots shown in the figure represents speed (v) of the electron in a hydrogen atom as a function of the principal quantum number (n)?
- The ratio of number of oxygen atoms (O) in 16.0 g ozone $(O_3), \,28.0\, g$ carbon monoxide $(CO)$ and $16.0$ oxygen $(O_2)$ is (Atomic mass: $C = 12,0 = 16$ and Avogadro?? constant $N_A = 6.0 x 10^{23}\, mol^{-1}$)
- AIEEE - 2012
- Mole concept and Molar Masses
View More Questions
Concepts Used:
Coordination Compounds
A coordination compound holds a central metal atom or ion surrounded by various oppositely charged ions or neutral molecules. These molecules or ions are re-bonded to the metal atom or ion by a coordinate bond.
Coordination entity:
A coordination entity composes of a central metal atom or ion bonded to a fixed number of ions or molecules.
Ligands:
A molecule, ion, or group which is bonded to the metal atom or ion in a complex or coordination compound by a coordinate bond is commonly called a ligand. It may be either neutral, positively, or negatively charged.